GB458236A - The manufacture of alkyl- and acyl-derivatives of phenols - Google Patents
The manufacture of alkyl- and acyl-derivatives of phenolsInfo
- Publication number
- GB458236A GB458236A GB1648536A GB1648536A GB458236A GB 458236 A GB458236 A GB 458236A GB 1648536 A GB1648536 A GB 1648536A GB 1648536 A GB1648536 A GB 1648536A GB 458236 A GB458236 A GB 458236A
- Authority
- GB
- United Kingdom
- Prior art keywords
- acid
- heated
- derivatives
- isopropyl
- cresols
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/76—Ketones containing a keto group bound to a six-membered aromatic ring
- C07C49/82—Ketones containing a keto group bound to a six-membered aromatic ring containing hydroxy groups
- C07C49/83—Ketones containing a keto group bound to a six-membered aromatic ring containing hydroxy groups polycyclic
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/01—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis
- C07C37/055—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by replacing functional groups bound to a six-membered aromatic ring by hydroxy groups, e.g. by hydrolysis the substituted group being bound to oxygen, e.g. ether group
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C37/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
- C07C37/11—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
- C07C37/16—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms by condensation involving hydroxy groups of phenols or alcohols or the ether or mineral ester group derived therefrom
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/45—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by condensation
- C07C45/46—Friedel-Crafts reactions
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/51—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition
- C07C45/54—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by pyrolysis, rearrangement or decomposition of compounds containing doubly bound oxygen atoms, e.g. esters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
O- and C-alkyl and acyl derivatives of phenols are manufactured by condensing a carboxylic acid or an alcohol with a phenol in the presence of a heteropoly acid. Alternatively, the nuclear derivatives are manufactured by transforming the O-derivatives in the presence of a heteropoly acid. In examples: (1) benzoic acid and phenol are heated with silicomolybdic acid to produce phenyl benzoate; (2) phosphotungstic acid is used in the process of (1), the product being phenyl benzoate, o- and p-hydroxybenzophenone and benzaurine; (3) 1 - naphthyl acetate is heated with phosphotungstic acid and acetic acid to yield 2- and 4-aceto-1-naphthol; (4) methanol vapour is passed into a heated mixture of phenol and phosphomolybdic acid, producing anisol; (5) a mixture of m-cresol and phosphotungstic acid is treated with isopropyl alcohol, yielding a mixture of isomeric isopropyl-m-cresols (including thymol), and a little m-cresyl isopropyl ether; (6) m-cresyl isopropyl ether is heated with silicotungstic acid to produce isopropyl-m-cresols and some higher propylated cresols.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1648536A GB458236A (en) | 1936-06-12 | 1936-06-12 | The manufacture of alkyl- and acyl-derivatives of phenols |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1648536A GB458236A (en) | 1936-06-12 | 1936-06-12 | The manufacture of alkyl- and acyl-derivatives of phenols |
Publications (1)
Publication Number | Publication Date |
---|---|
GB458236A true GB458236A (en) | 1936-12-15 |
Family
ID=10078195
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1648536A Expired GB458236A (en) | 1936-06-12 | 1936-06-12 | The manufacture of alkyl- and acyl-derivatives of phenols |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB458236A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0461975A1 (en) * | 1990-06-13 | 1991-12-18 | Elf Atochem S.A. | The preparation of unsaturated carboxylic acid esters by liquid phase (trans-)esterification using heteropolyacids as catalysts |
-
1936
- 1936-06-12 GB GB1648536A patent/GB458236A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0461975A1 (en) * | 1990-06-13 | 1991-12-18 | Elf Atochem S.A. | The preparation of unsaturated carboxylic acid esters by liquid phase (trans-)esterification using heteropolyacids as catalysts |
FR2663322A1 (en) * | 1990-06-13 | 1991-12-20 | Norsolor Sa | USE OF HETEROPOLYACIDS AS CATALYSTS IN THE PREPARATION OF UNSATURATED CARBOXYLIC ACID ESTERS BY LIQUID (TRANS) ESTERIFICATION, AND CORRESPONDING PREPARATION METHOD. |
US5827939A (en) * | 1990-06-13 | 1998-10-27 | Atochem | Heteropolyacid catalysts in the preparation of esters of unsaturated carboxylic acids |
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